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| Number | Title | Issue Date |
| 7116070 | System and method for sensor less magnetic field control of a motor A system and method for sensor less control of a stepper motor is described. The system and method includes estimation of the position of a rotor of the motor by way of sensing circuitry on the windings of the motor, without the use of positional sensors. The system... | 10/03/2006 |
| 6215681 | Bus bar heat sink A multiple current path device, for carrying electric current to and conducting heat from an electronic circuit, comprising an optional heat sink, a plurality of conducting substrates forming several electrically insulated current conductors, a thermally ... | 04/10/2001 |
| 6191507 | Modular conveyor system having multiple moving elements under independent control The modular conveyor system comprises N interconnected track sections, forming a continuous track, wherein each track section features a plurality of individually controlled coils stretching along the length thereof. Plural pallets, each having thrust pro... | 02/20/2001 |
| 5982126 | Power closure panel control apparatus A power closure panel control apparatus is independent of closure panel configuration and capable of a diverse range of remote and direct activation. Sophisticated safety features utilize an adaptive strategy to facilitate highly sensitive obstruction det... | 11/09/1999 |
| 5874818 | Method and apparatus for sensing load current in a motor controller The approach to measuring load current in a multi-phase bridge inverter circuit connected to a multiphase load involves placing a single current sense resistor in series with the inverter circuit and power supply. The current flow through the sense resist... | 02/23/1999 |
| 5640304 | Power electronic device mounting apparatus A plastically deformable lever is used to compress a flat spring against the upper surface of a power electronic device in mounting the device on a bus bar or heat sink. The lever preferably is integral with the bus bar or heat sink. The heat sink or bus ... | 06/17/1997 |
